It would be great if could be possible to instruct Firefox to honour the printer marked as "default" in Windows and use it regardless of what printer was used last time. Now, when one selects Ctrl+P (Print), the last used printer is selected. If there are \\1.2.3.4\sambasharedprinters in Windows printer list and such shared printer was used last time and Ctrl+P is this time issued outside (usually local) network from where this shared printer is only accessible, it can take pretty long time to display Print Preview, because Windows tries to connect to the (last used) network shared printer, which cannot be accessed, thus we are waiting for timeout to happen. Only then one can choose the correct printer.